Mr Zuma is no ordinary litigant. He is the former President of the Republic, who remains a public figure and continues to wield significant political influence, while acting as an example to his supporters… He has a great deal of power to incite others to similarly defy court orders because his actions and any consequences, or lack thereof, are being closely observed by the public. If his conduct is met with impunity, he will do significant damage to the rule of law. As this Court noted in Mamabolo, “[n]o one familiar with our history can be unaware of the very special need to preserve the integrity of the rule of law”. Mr Zuma is subject to the laws of the Republic. No person enjoys exclusion or exemption from the sovereignty of our laws… It would be antithetical to the value of accountability if those who once held high office are not bound by the law.
And you should know why the German regulations are a bad example of your case: the German political laws (5% minimum vote before election, etc) are there to exclude the possibility of another Nazi party emerging. The laws in Germany aren’t there for any good constitutional reason, they are there because of a political reflex against certain forms of extremism. No, that doesn’t mean they are a bad thing, but it doesn’t have anything to do with the constitutional validity of enforcing democracy in political parties by legal means.
I have three quick reactions to this argument. First, in a democracy the dominant political party will inevitably legislate in a way that will advantage them, but when there is a strong civil society and real contestation for power a dominant party will think twice before adopting legislation that would obviously rig the system.
Second, even where the rules favour the dominant party it is always better to have regulation that not having regulation at all because without any regulation the dominant party who can distribute patronage and has wide state powers, can easily go wayward. In any case a party like the ANC who experienced severe upheaval in the preparation of its election lists before the last local government election, may come to see the benefits of legislation that regulate the selection of candidates.
Lastly, Germany is not the only country who has adopted party laws. Other countries like Mexico has also done so and did so in reaction to a long history of corruption in the politics of that country. In a country with pure proportional representation a party law can help to stop the internal party corruption in the compilation of party election lists.